First pass at tests

Author: benvinegar

src/raven.js

@@ -384,6 +384,8 @@ Raven.prototype = {
                 ex = ex1;
             }
 
+            console.log(ex.stack);
+
             // null exception name so `Error` isn't prefixed to msg
             ex.name = null;
 
@@ -1132,15 +1134,15 @@ Raven.prototype = {
 
             // e.g. frames captured via captureMessage throw
             var j;
-            if (options && options.trimHeadFrames) {
-                for (j = 0; j < options.trimHeadFrames && j < frames.length; j++) {
+            if (options && options.trimTailFrames) {
+                for (j = 0; j < options.trimTailFrames && j < frames.length; j++) {
                     frames[j].in_app = false;
                 }
             }
 
             // e.g. try/catch (wrapper) frames
-            if (options && options.trimTailFrames) {
-                for (j = options.trimTailFrames; j < frames.length; j++) {
+            if (options && options.trimHeadFrames) {
+                for (j = frames.length - options.trimHeadFrames; j < frames.length; j++) {
                     frames[j].in_app = false;
                 }
             }

test/raven.test.js

@@ -2027,6 +2027,29 @@ describe('Raven (public API)', function() {
             });
         });
 
+        it('should include a synthetic stacktrace if stacktrace:true is passed', function () {
+            this.sinon.stub(Raven, 'isSetup').returns(true);
+            this.sinon.stub(Raven, '_send');
+
+            function foo() {
+                Raven.captureMessage('foo', {
+                    stacktrace: true
+                });
+            }
+
+            foo();
+            var frames = Raven._send.lastCall.args[0].stacktrace.frames;
+
+            // Raven.captureMessage
+            var last = frames[frames.length - 1];
+            console.log(last.function);
+            assert.isTrue(/captureMessage/.test(last.function)); // loose equality check because differs per-browser
+            assert.equal(last.in_app, false);
+
+            var secondLast = frames[frames.length - 2];
+            assert.equal(secondLast.function, 'foo');
+            assert.equal(secondLast.in_app, true);
+        });
     });
 
     describe('.captureException', function() {